Door-hanger.



P. L. HOFFMAN.

DOOR HANGER.

APPLICATION FILED MAY s1, 191s.

1 1 20, 1 97, Patented Dec. 8, 1914.

2 SHEETS-'SHEET 1.

P. L. HOFFMAN.

DOOR HANGER.

APPLICATION FILED MAY a1, 1913.

Patented Dec. 8, 1914.

ITED STATES PATENT OFFICE.

:PETER L. HOFFMAN, 0F AURORA, ILLINOIS, ASSIGNOR T0 RICHARDS-WILCOX MANU. FACTURING COMPANY, OF AURORA, ILLINOIS, A CORPORATION OF ILLINOIS.

DOOR-HANGER.

Specification of Letters Patent.

Patented Dec. 8, 1914;.

To all 'whom it may concern Be it known that I, PETER L. HOFFMAN, citizen of the United States, residing at Aurora, in the county of Kane and State of Illinois, have invented certain new and useful Improvements in Door-Hangers, of which the following is a specification.

This invention relates to improvements in door hangers adapted to travel on tubular track and to support heavy doors such as are commonly used in freight depots, warehouses, &c., and of the type that may be adjusted both vertically and laterally without disconnecting any of the hanger members.

The especial object of the improvements upon which I ask a patent in this case, is to provide a hanger of exceptional strength, made of cast iron, and in which the load or weight carried thereby willbe so well distributed as to subject no one part to undue stress or danger of breakage.

A further object of my improvements is to provide effective, readily accessible and operable adjusting means of economical construction.

Other objects of general utility are'attained by my improvements all of which will be apparent to those skilled in the art from an examination of the accompanying drawings which form a part of this application, in which Figure 1 is a front elevation of my improved hanger complete; Fig. 2 is a side or edge view of the complete hanger; Fig. 3 is a front elevation of the main lower frame casting; Fig. 4 is a front elevation of they upper frame or wheel housing member; Fig. 5 is a vertical section on the line 5--5 of Fig. 4; Fig. 6 is a side or edge view of the middle member which serves as an adjustable coupling for the upper and lower members; Fig. 7 is a front elevation of the mlddle member of the hanger.

Referring to the details of the drawings as disclosed particularly in Figs. 1, 2, 4, and 5, the reference numeral 8 represents generally the upper or wheel-housing member of my improved hanger which consists of a astlng formed with a circular hood portion 8, which overhangs and incloses the upper portion of the track-wheel 9, the axle 9a of which, is journaled in the front and rear walls of said housing. The lower portion of the member 8, is formed with downwardly tangular in cross-section. The legs 8b and the portion of the casting midway therebetween, extend laterally for a substantial distance to form a base, as at 8c, in which is provlded a recess 8f, which lies below, and 1n the same vertical plane with, the wheel 9. In the recess 8t is a horizontal roller 10 havlng a concave face, and rotatably mounted on an axle-bolt 10 which extends through the front and rear walls of the extended ort1on of the frame, as clearly shown in ig. 5. Extending downwardly from, and longitudlnally of the base portion 8c of the frame 8, atone side of its central vertic'al plane, and 1n the same horizontal plane with the grooves 8d, is a rib on one of the vertical sldes olf which, are teeth which form a rack 8e for a purpose to be described.

Referring particularly to Figs. 1, 2, and 3, of the drawing, the reference numeral 11 represents generally, the lower hanger frame member or apron, the same consisting of a casting having formed therein three bolt receiving holes 11a b which the apron is secured to a door, znot shown) and in the upper part of said casting, is a rectangular slot 11b, on the side margins of which are overhanging flanges 11. Midway of the apron, is a transverse outwardly projecting or offset rib 11d through which is avertical opening 11. The slot 11", with its vertical marginal flanges 11C, provides a slideway for the middle member of my improved hanger shown separatel and in detail, in Figs. 6 and 7. This mi dle member is represented generally by the reference numeral 12, and consists of a casting of the rightangle form shown in Fig. 6, 1n which transverse horizontal ribs 12a are formed on the sides of the angular extension 12", at the upper end of the casting. In the lower portion of the member 12, are spaced lugs 12, between which is arranged the unthreaded portion of a bolt 15, (Fig. l) the head 15 of which, rests on the upper edge of said lugs, in a recess formed therefor in said member 12, the walls of said recess engaging the head 15a and preventin the rotation of the bolt in its bearings. he bolt 15 extends downwardly through the opening 11 in the lug 11, and has its lower portion threaded as at 15b to receive adjusting and ywhen it is desired to adjust the relative posigag locking nuts 16, 16, respectively.. The upper portion of the member 12 is bored longitudinally to receive a bolt 13, the head 13EL of which is toothed to engage the teeth of the rack rib 8 when the parts are assembled. Near the lower end of the bolt 13, is a hole adapted to be engaged by a suitably pointed device for rotating the bolt tion of the members 8 and 11. A set screw 14 engages a hole suitably threaded therefor near the center of the member 12, the inner end of said screw being adapted to impinge upon the lower portion of the bolt 13, and thus prevent the rotation of the latter when the screw 14 is set. The side margins of the member 12 are provided with ribs 12d whichengage the under side of the flanges 11 of the member 11, thus maintaining the two members 11 and 12 in vertically slidable relation and preventing lateral movement therebetween.

' to the outer face of the door.

From the construction described, it will be obvious that the rotation of the toothed "head 13El of the bolt 13 when in engagement with the rack 8e will cause the wheel housing or upper trame member 8 of the hanger to move inwardly or outwardly relative to the members 11 and 12, and thereby vary the position of the vertical axis of the wheel 9 to the plane of the apron 11 which is bolted When the desired adjustment is edected in this way, the` screw 14 is set or tightened, and the members are thereby held against accidental displacement. vIt will also be obvious that as the connection between the members 11 and 8 is effected by the member 12 through the engagement of the ribs 12L of the latter with the grooves 8d of the member 8, and the connection between the members 11 and 12 is effected by the bolt 15, that the rotation of the nuts 16, 16, on the bolt 15, will permit the relative movement between the members 11 and 12 in a vertical plane within the limitations of the slideway formed by the ianges 11, and that when the proper vertical adjustment is thus effected, the nut 16 may be screwed up tightly against the under side of the lug 11d, and the lock nut 16a against the nut 16, and thereby insure the parts against further vertical movement until the nuts are again loosened.

'llhe adjustments of my improved hanger, it will be seen, are edected by the turning of the two bolts, 1? and 15, the *former having a head of special or pinion form, and a non-threaded body, and the latter being of a* justing bolt 13 so that it may be easily operated to effect tthe lateral adjustment ot the hanger members. l j

Having thus described my invention what ll claim as new and desire to secure by Letters Patent, is

1. A door-hanger comprising an upper member having a wheel housing in its upper portion and having a laterally extending ase with grooves therein and a rack arranged between said grooves, a lower member having a slideway therein, a middle member horizontally slidable on and supported by the grooved portion of the upper member, and vertically slidable on the lower member, means for relatively adjusting the upper member and middle member through engagement with said rack, and means for relatively adjusting the middle member and the lower member.

2. A door-hanger comprising an upper member, a lower member and a middle member, `said middle member supported by and horizontally slidable on the upper member, a rack integral with the upper member, a bolt rotatably arranged in the middle member and having a toothed-head operatively engaging said rack in the upper member, means for locking said bolt against rotation, a slidable connection between said middle and lower members, and means for edecting adjustment between the middle and the lower members, said means comprising a bolt rotatably mounted in the middle member and a nut mounted on said bolt and bearing against said lower member.

1n testimony whereof 1 aiiix my signature in the presence of two witnesses.

PETER L. HOFFMAN.

Witnesses:

WM. HAROLD lEroHnLMAN, ld.. A. Mmmm. 

